This bubble will never burst. The big investors are feeding a leverage cycle and cannot afford to stop. In addition, corporate nepotism has taken hold - for example, AI firms(the current flavor of software) invest in hardware companies. Hardware companies make money as the AI firms buy their product. Hardware companies then take that money and in vest in AI firms. The 'free market' no longer looks at 'value' to assess prices. And as equity prices become a reflection of the algorithmic trading that AI is doing, we have no way of knowing when and if they will decline.